Torbal DRX300 Manual - Manual (Page 17)

Instruction Manual - TORBAL DRX 5 Series
4. To change the contrast of your LCD display, select “Contrast” and press the ENTER key.
5. Using the left and right arrow navigation keys to adjust the contrast of your display.
6. Once the contrast is at a desired level press the ENTER key to save the setting.
7. To completely turn off the back light of the LCD display, select “Back Light” and press ENTER.
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